AuroraMiddleware/harfbuzz
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96 Commits

Author SHA1 Message Date
Behdad Esfahbod
ea278d3895 Partially switch ot shaper to shape_plan 2012-07-27 02:12:28 -04:00
Behdad Esfahbod
47ef931f13 [buffer] Make sure out_info = info during GPOS 2012-07-19 20:52:44 -04:00
Behdad Esfahbod
39b17837b4 Add hb_buffer_normalize_glyphs() and hb-shape --normalize-glyphs 
This reorders glyphs within the cluster to a nominal order.  This should
have no visible effect on the output, but helps with testing, for
getting the same hb-shape output for visually-equal glyphs for each
cluster.
 2012-07-17 17:09:29 -04:00
Behdad Esfahbod
e085fcf7ca Remove unused buffer->replace_glyphs_be16 2012-06-08 21:45:00 -04:00
Behdad Esfahbod
fe3dabc08d Minor 2012-06-08 20:56:05 -04:00
Behdad Esfahbod
e88e14421a Use merge_clusters instead of open-coding 2012-06-08 20:55:21 -04:00
Behdad Esfahbod
e51d2b6ed1 Extend into main buffer if extension hit end of out-buffer merging clusters 2012-06-08 20:36:33 -04:00
Behdad Esfahbod
5ced012d9f Extend end when merging clusters in out-buffer 2012-06-08 20:31:32 -04:00
Behdad Esfahbod
72c0a18783 Extend clusters backward in out-buffer 2012-06-08 20:30:03 -04:00
Behdad Esfahbod
cd5891493d Extend clusters backwards, into the out-buffer too 2012-06-08 20:28:59 -04:00
Behdad Esfahbod
cafa6f3727 When merging clusters, extend the end 2012-06-08 20:17:10 -04:00
Behdad Esfahbod
2a3d911fe0 Fix alignment-requirement missmatch 
Detected by clang and lots of cmdline options.
 2012-06-07 17:31:46 -04:00
Behdad Esfahbod
0594a24484 Cleanup TRUE/FALSE vs true/false 2012-06-05 20:35:40 -04:00
Behdad Esfahbod
e1ac38f8dd Fix inert buffer set_length() with zero 
Oops!
 2012-06-05 20:31:49 -04:00
Behdad Esfahbod
be4560a3b5 Undo default unicode-funcs to avoid static initializer again 2012-06-05 18:43:57 -04:00
Behdad Esfahbod
f06ab8a426 Better hide nil objects and make them const 2012-06-05 14:49:14 -04:00
Behdad Esfahbod
8e3715f8a1 Minor 2012-04-23 22:18:54 -04:00
Behdad Esfahbod
3b26f96ebe Add Thai shaper that does SARA AM decomposition / reordering 
That's not in the OpenType spec, but it's what MS and Adobe do.
 2012-04-10 10:52:07 -04:00
Behdad Esfahbod
d4cc44716c Move code around, in prep for Thai/Lao shaper 2012-04-07 21:52:28 -04:00
Behdad Esfahbod
c521e793bd Fix OOB in replace_glyph() 
Patch from Kenichi Ishibashi.
 2012-01-18 21:51:05 -05:00
Behdad Esfahbod
9ebe8c0286 Add buffer->replace_glyphs() 2011-08-26 09:29:42 +02:00
Behdad Esfahbod
e6c09cdf43 Remove the pre_allocate argument from hb_buffer_create() 
For two reasons:

1. User can always call hb_buffer_pre_allocate() themselves, and

2. Now we do a pre_alloc in add_utfX anyway, so the total number of
reallocs is limited to a small number (~3) anyway.  This just makes the
API cleaner.
 2011-08-19 19:20:26 +02:00
Behdad Esfahbod
4e9ff1dd6e Pre-allocate buffers when adding string 
We do a conservative estimate of the number of characters, but still,
this limits the number of buffer reallocs to a small constant.
 2011-08-15 16:21:22 +02:00
Behdad Esfahbod
33ccc77902 [API] Make set_user_data() functions take a replace parameter 
We need this to set data on objects safely without worrying that some
other thread unsets it by setting it at the same time.
 2011-08-09 00:43:24 +02:00
Behdad Esfahbod
944b2ba1ce [buffer] Make API take signed int length 
Since we already switched to accepting -1 as 'zero-terminated'.
 2011-08-09 00:23:58 +02:00
Behdad Esfahbod
144cd49a0e [buffer] Accept -1 for text_length and item_length 
A -1 text_length means: zero-terminated string.
A -1 item_length means: to the end of string.
 2011-08-07 00:51:50 -04:00
Behdad Esfahbod
02aeca985b [API] Changes to main shape API 
hb_shape() now accepts a shaper_options and a shaper_list argument.
Both can be set to NULL to emulate previous API.  And in most situations
they are expected to be set to NULL.

hb_shape() also returns a boolean for now.  If shaper_list is NULL, the
return value can be ignored.

shaper_options is ignored for now, but otherwise it should be a
NULL-terminated list of strings.

shaper_list is a NULL-terminated list of strings.  Currently recognized
strings are "ot" for native OpenType Layout implementation, "uniscribe"
for the Uniscribe backend, and "fallback" for the non-complex backend
(that will be implemented shortly).  The fallback backend never fails.

The env var HB_SHAPER_LIST is also parsed and honored.  It's a
colon-separated list of shaper names.  The fallback shaper is invoked if
none of the env-listed shapers succeed.

New API hb_buffer_guess_properties() added.
 2011-08-04 22:38:09 -04:00
Behdad Esfahbod
c605bbbb6d Remove C++ guards from source files 
Where causing issues for people with MSVC.
 2011-08-04 20:00:53 -04:00
Behdad Esfahbod
e62df43649 Add internal hb_buffer_t::get_scratch_buffer() 2011-08-03 17:38:54 -04:00
Behdad Esfahbod
b65c06025d Formalize buffer var allocations 2011-07-28 16:49:29 -04:00
Behdad Esfahbod
a9ad3d3460 Move more code around 
Buffer var allocation coming into shape
 2011-07-28 15:42:18 -04:00
Behdad Esfahbod
3a81b1db89 Minor, fix leak from my previous refactorings 2011-07-25 16:30:32 -04:00
Behdad Esfahbod
f4a579bc42 Add internal API for buffer var allocation 2011-07-25 16:26:05 -04:00
Behdad Esfahbod
468e9cb25c Move buffer methods into the object 2011-07-22 14:49:14 -04:00
Behdad Esfahbod
9111b21ef9 Add _hb_buffer_output_glyph() and _hb_buffer_skip_glyph() 2011-07-21 00:59:15 -04:00
Behdad Esfahbod
dd89d958c1 Fix cluster calculation for non-LTR text 2011-07-21 00:28:57 -04:00
Behdad Esfahbod
2e18c6dbdf Fix reverse_range() position loop 
Mozilla Bug 669175 - Slow rendering of text sometimes in this case,
using direction: rtl
 2011-07-06 16:05:45 -04:00
Behdad Esfahbod
80a6833b03 [API] Add hb_*_get_empty() for all objects 2011-05-11 18:21:58 -04:00
Behdad Esfahbod
3935af1c0d [buffer] Remove wrong optimization 
While the cluster fields of the glyph string are usually sorted, they
wouldn't be in special cases (for example for non-native direction).
Blindly using bsearch is plain wrong.  If we want to reintroduce this
optimization we have to make sure we know the buffer clusters are
monotonic and in which direction.  Not sure it's worth it though.
 2011-05-05 16:09:45 -04:00
Behdad Esfahbod
e87867cb88 [buffer] Fail in _create() if we cannot pre-allocate the requested size 2011-05-02 19:35:05 -04:00
Behdad Esfahbod
243673d601 [test/buffer] Add more extensive UTF-8 test data from glib 2011-04-28 19:37:51 -04:00
Behdad Esfahbod
080a0eb7d8 Add _hb_unsigned_int_mul_overflows 2011-04-28 16:01:01 -04:00
Behdad Esfahbod
3264042873 [test/buffer] Test pre_allocate() and allocation_successful() 2011-04-28 14:24:16 -04:00
Behdad Esfahbod
e0db4b868f [buffer] More error handling 
Should be all set now.
 2011-04-28 12:56:49 -04:00
Behdad Esfahbod
5fa849b77d [API] Add _set/get_user_data() for all objects 2011-04-27 21:46:01 -04:00
Behdad Esfahbod
47e71d9661 [object] Remove unnecessary use of macros 2011-04-27 16:41:08 -04:00
Behdad Esfahbod
65e0063eae Make buffer size growth start from 32 instead of 8 2011-04-27 09:38:23 -04:00
Behdad Esfahbod
d4bee9f813 [API] Add hb_unicode_funcs_get_default() 2011-04-27 09:38:19 -04:00
Behdad Esfahbod
fca368c468 Add hb_object_header_t which is the common part of all objects 
Makes way for adding arbitrary user_data support.
 2011-04-21 18:24:02 -04:00
Behdad Esfahbod
2409d5f8d7 Update Copyright headers 2011-04-21 17:14:28 -04:00